The DuPont™ Tychem® 4000 hooded coverall (SL127B WH) is engineered to provide durable and reliable protection against a wide range of chemical hazards in demanding environments. Constructed with a chemical barrier film laminated to a Tyvek® substrate, this coverall delivers strong resistance to splashes, spills, and abrasive conditions while maintaining flexibility and comfort. Designed with bound seams, an adhesive storm flap, and a secure pin-lock zipper system, it helps reduce the risk of chemical intrusion. Ideal for hazardous remediation, chemical handling, and controlled environments, this protective garment supports safety compliance while enabling efficient, long-duration use in the field.

Key Features

Advanced chemical barrier protection: Tychem® 4000 fabric provides at least 30 minutes of protection against over 124 chemical challenges.
Durable laminated construction: Tyvek® substrate with chemical film enhances abrasion resistance and durability.
Secure closure system: Storm flap with adhesive closure and pin-lock zipper reduces risk of chemical penetration.
Reinforced bound seams: Covered seams improve strength and limit particle and liquid ingress.
Integrated hood design: Attached hood with elastic face opening ensures better coverage and fit.
Elastic wrist and ankle closures: Helps create a tighter seal to prevent contamination entry.
Lightweight and flexible wear: Supports comfort and mobility during extended use.
Latex-free manufacturing: Made without natural rubber latex to reduce risk of allergic reactions.

Intended Use

This chemical protective coverall is designed for professionals working in environments where exposure to hazardous liquids, splashes, and particulate contamination is a concern. It supports safe operations across regulated and high-risk industries.

Hazardous material remediation and decontamination
Chemical handling and mixing operations
Nuclear and controlled environments
Waste management and environmental cleanup
Emergency response and medical applications
Paint spraying and industrial coating operations
Industrial maintenance involving chemical exposure

Product Specifications

Product name: DuPont™ Tychem® 4000 Hooded Coverall
Model: SL127B WH
Product type: Chemical protective coverall
Material: Tychem® 4000 (Tyvek® substrate with laminated chemical barrier film)
Design: Coverall with hood, elastic wrists and ankles
Seam type: Bound seams
Closure: Zipper with adhesive storm flap and pin-lock slider
Color: White
Thickness: 12 mils
Basis weight: 3.6 oz/yd²
Burst strength: 71 psi
Tensile strength (MD): 44 lbf
Tensile strength (CD): 48 lbf

Certifications and Standards

16 CFR 1610 Class 1: Meets flammability requirements for wearing apparel
Chemical resistance: Tested against a wide range of hazardous chemicals with documented breakthrough performance
Fabric passes ASTM F1670 and ASTM F1671 tests, offering bloodborne pathogen protection